docs: def spkssb(targ, et, ref):
      """
      Return the state (position and velocity) of a target body
      relative to the solar system barycenter.
  
      http://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/spkssb_c.html
  
      :param targ: Target body.
      :type targ: int
      :param et: Target epoch.
      :type et: float
      :param ref: Target reference frame.
      :type ref: str
      :return: State of target.
      :rtype: 6-Element Array of floats
      """
      targ = ctypes.c_int(targ)
      et = ctypes.c_double(et)
      ref = stypes.stringToCharP(ref)
      starg = stypes.emptyDoubleVector(6)
      libspice.spkssb_c(targ, et, ref, starg)
      return stypes.cVectorToPython(starg)